Pith Number

pith:4JN53PA3

pith:2018:4JN53PA3PQWNWU5LVBIRDVKRWR

not attested not anchored not stored refs pending

Methyl cyanide (CH3CN) and propyne (CH3CCH) in the low mass protostar IRAS 16293-2422

Audrey Coutens, Ines Andron, Jean-Christophe Loison, Liton Majumdar, Pierre Gratier, Thomas H. G. Vidal, Valentine Wakelam

arxiv:1812.05416 v1 · 2018-12-13 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4JN53PA3PQWNWU5LVBIRDVKRWR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:58:20.287815Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e25bddbc1b7c2cdb53aba85111d551b447ebd2ec207d35b51bbfc6d9d83d4e09

Aliases

arxiv: 1812.05416 · arxiv_version: 1812.05416v1 · doi: 10.48550/arxiv.1812.05416 · pith_short_12: 4JN53PA3PQWN · pith_short_16: 4JN53PA3PQWNWU5L · pith_short_8: 4JN53PA3

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4JN53PA3PQWNWU5LVBIRDVKRWR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e25bddbc1b7c2cdb53aba85111d551b447ebd2ec207d35b51bbfc6d9d83d4e09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76e5b123c77ff5d81173109c3735cd661605713a82cdba1848e0f605013f2030",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-12-13T13:29:04Z",
    "title_canon_sha256": "a1108bdd62ec965928de25533207b65b091481c14c84f94e057df5cf7d502182"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05416",
    "kind": "arxiv",
    "version": 1
  }
}